Apparatus for flinging off superfluous coating when tinning, painting, or the like



, APPARATUS FOR FLINGING 0FF SUPERFLUOUS COATING WHEN TINNLN s. A. ESKILS'ON.

G, PAINTING OR THE LIKE. APPLICATION FILED DEC. 12. 1911.

1,327,273. Pzifented Jan. 6,1920.

4 SHEETS-SHEET I.

S. A. ESKILSON. APPARATUS roa FLINGING OFF SUPERFLUOUS comma WH EN mums, PAINTING, on THE LIKE.

APPLICATION FILED DEC-12.1911. I 1,327,273, Patented Jan. 6, 1920.

4 SHEETS-SHEET 2.

15 y um O O I 22.

um 17 a v r J s. A. ESKILSON. APPARATUS FOR FLlNGlNG OFF SUPERFLUOUS COATING WHEN TINNING, PAINT] we, 03 THE LIKE. APPLICATION FILED DEC- 12, IQ IT- 1,327,273. Patented Jan. 6, 1920.

' 4 SHEETS-SHEET 3.

S. A. ESKILSON.

APPARATUS FOR FLINGING OFF SUPERFLUOUS COATING WHEN TINNING, PAINTING, OR THE LIKE.

APPLICATION FILED DEC. I2. 19!]- 1,327,273, Patented Jan. 6, 1920.

4 SHEETS-SHEET 4- J 1 A W (5%. Q v 55 51\ E .Zhvenfon ratus.

ably provided wit a coupling gear for con- Sweden,

SVEN AUGUST ESKILSON, OF STOCKHOLM, SWEDEN. v

APPARATUS FOR FLINGTNG QFF SUPERFLUOUS COATING WHE'N TINNING, PAINTING,

. OR THE LIKE.

Specification of matters latent.

Patented J an. '6, 1920.

Application filed December 12, 1917. Serial No. 206,760.

To all whom it may concern:

Be it known that I, SVEN AUGUST Esiun- SON, a subject of the King of Sweden, residing at. Stockholm, in the Kingdom of have-invented a new and useful Im- Apparatus for Flinging Ofi' provement in superfluous Coating When Tinning, Painting, or the like, of which the following 1s aspecification.

The present invention relates to an apparatus for flinging oif superfluous coating when tinning, painting or the like, in order to save tin or paint and also to procure an even coating.

Apparatus for this purpose have previously been constructed which consist of a statlon'ary frame supporting a rotary shaft for a cageservin for receiving the objects to be treated. T ere are also apparatus in which the frame is rotatable on a stationaryshaft.

The purpose of the present invention is to provide an apparatus of the kind referred to, which shall be convenient to handle and by means of which a work-piece may easily be picked up at one place, transferred for instance to a tin bath or the like, thence to a water trough, and finally to a fourth place where the ready without having to follow an appolnted path.

The invention is principally characterized by a rotatable gripping device for the objects to be tinned, painted, etc., said gripping device being removable or portable either separately, or together with the appa- The said ripping device is prefernecting the same to a rotating member or to a member which maybe caused to rotate when the connection has been effected. The member to which the gripping device may be connecteda'nd which may be rotated when the connection has been efl'ected, may consist of a movably journaled shaft provided with a coupling gear by means of which it may be connected with a rotating shaft. According to another embodiment of the invention the rotating membenthe coupling gear an the gripping device common removable or portable casing, for instance in such manner that a shaft is rotatably journaled within a portable casing, the said shaft being work-pieces are collected,

work-piece may be directly are provided within a .em odiment, and Fig.

gripping device, ranged between the shafts for connecting the same with one another. According to a further embodiment of the invention a shaft is rotatably journaled in a removable or portwheel, -dis or the like by means of which a coupling gearbeing ar able casin which shaft supports a frlction' v the apparatusmay be brought into operative engagement with rotating friction rolls,

' disks or the 1ike,-and the gripping device for the objects to be tinned or the like. The apparatus may also consist of an electric motor arranged within a portable casing, the gripping device being connected to the shaft of themotor which latter is connected with a source of current by means of a flexible conductor.

With this apparatus it ispossible to grip a work-piece, submerge it in the tin bath and raise it with the apparatusand immediately to put the work-piece into rotation above the level of the bath, whereby it is attained that the tin flung oif drops into the bath, and also, on account of the work-piece being prevented from cooling by it being held in the warm air above the bath,

that the surface of the treated object becomes more even and that more tin is flung off. than when, as heretofore practised, the workpiece upon removal from the bath is transported to and fixed in a centrifugal apparatus in order to have the tin flung ofl. It is also apparent that with the present apparatus the tinning 'will be effected more rapidly, because when the tin has been flung oil, the submerged into water for cooling the same, and may be removed from the apparatus immediately afterward. I

In the accompanying drawings a few embodiments of the invention are shown byway of example. bodiment in elevation. Fig. 2 shows a lonv gitudinal vertical section of a second EH13 bodimen'tof the invention, and Fig. 3 shows the same embodiment viewed from' above.

Figure 1 represents one em- Fig. 4 is avertic al section of a third emd bodimentyand Fig. 5 shows diagrammatically and to a smaller scale a detail thereof. U

Fi 6 is a vertical section through a fourth 7 shows to a smaller scale an elevation of a fifth embodiment.

connected with a mo- 8 illustrates asixth embodiment, of the tion-transmitting flexible shaft or the like as well as with another shaft carrying the invention. I I V In the embodiment shown in'Fig. 1, 1 is the gripping device for the objects to be tached by means of a lever 6 and preferably as long as the tiller 20 also through a link 7 to a frame 8, in which a rotary friction disk 9 is journaled. The

object having been dippedinto the tin bath by means of the gripping device 1, and the latter having been hung on to the hook 2, the disk 5 is moved up against the disk 9 by means of the lever 6, whereby the gripping device and the object are caused to rotate so that the tin 'is flung ofi. When a sufiicient amount of tin has been flung off the lever 6 is lowered, so that the friction disk 5 comes into engagement with a brake lug 10 on the frame 8 and is thus caused to stop; The frame 8 is preferably located so that during- '-the rotation the gripping device 1 together with the object will be situated right above and near the level of the tin bath. In the embodiment of the gripping device shown, the object is fixed and retainedin the same by its own spring action.

I In the embodiment shown in Figs. 2 and 3, the shaft 12 is journaled in the casing 11, said shaft 12'being connected with a flexible motion-transmitting shaft '13. The shaft 12 is provided with suitable thrust-bearings 14 and 15. A second shaft 16 is journaled in alinement with the shaft 12 in a bushing 17 in the lower portion of the casing 11, and runs by means of a thrust-bearing 18 in a slide-block 19 which is movableup and down in the casing 11 bymeans of a tiller 20 secured to the same, which tiller may be operated by a finger 21. The shaft 12 is provided with a conical recess 22 at its lower end, and the shaft 16 vhas a corresponding conicalpivot 23 atits upper end, hence the said shafts may be coupled'with each other, when the tiller 20 and the slide-block 19 are moved upward. The shaft 16 then rotates with the shaft 12, is kept raised. When releaslng the tiller 20, the slide-block 19 will be pushed downward by the spring 24 which is inserted between the block and the casing or a part thereof. The flange25 of the shaft 16 is then pushedagainst the ring 26 in the slide-block 19 and the collar 27 on the shaft 16 is brought into engagement with the plate 28- fixed to the casing, thus braking the shaft 16. At the lower end of the shaft 16 a fork 29 or other holding. device is arranged on to which-the objects 'to be tinned qr painted are pressed and are secured through the spring action'of the fork.

he tinning of an object, for instance of a liner plate of a separator for which the fork 29 illustrated in the drawing is parwhen grasping the handle 'ariund the shaft 32 and bearing ticularly adapted, is performed in such manner, that the liner plate is pressed on to the fork, whereupon it is submerged in the tin bath and then raised to a position just above the level of the bath. The tiller 20 is now raised, so that the shafts 12 and 16 are brought into engagement with one another, whereby the liner plate is put into rotation. superfluous tin having been flung off, the same falling into the tin bath, the liner plate is dipped into water in order tobe cooled, whereupon it is removed, and a new liner plate is gripped for treatment. The course takes but a very short time, and in the manner described the tinning becomes very even and uniform and very little tin is required, besides which practically all superfluous tin may be saved as the flinging off is performed above the bath.

It is evident that in the embodiment shown many modifications may be made. For instance, the transmission of motion may be effected by means of a telescopically arranged shaft with universal joints, or the coupling gear may be of a different kind, and so forth. The'gripping device may also be of different construction according to the various objects to he held by the same.

The coupling gear i the motor from which the motion is transmitted and the grippingdevice. In the embodiment shown the upper shaft may be slidable longitudinally and the lower shaft not slidable or'both shafts may be prevented from moving in axial direction, a suitable movable coupling and. braking device being provided between the shafts.

In the embodiment according to Fig. 4 the work-piece to be tinned, etc., is attachedin any suitable manner to a fork or a holder 31. This fork or holder is connected with one end of a rotating member, for instance a shaft 32. The shaft 32 is journaled in a bushing 33, ball-bearings 34 being preferably arranged between the shaft and the bushing. A handle 35 is 36 which turn on shoulder screws 37 secured to the bushing 33. v A spring 38 is provided in the handle which spring tends to pushthe' handle away from the bushing. A friction disk-is secured to the other end of the shaft 32 which friction disk may consist of leather disks 40 clamped between two. plates 39. The ends of a brake band 41 are'secured tov the handle 35, the brake band b ing laid I directly inst the shaft or against a member secured to the same, for instance a brake disk 42. By the action of the spring 38 the brake band is brought into engagement with the brake disk.

When using the apparatus the same is supported by means of the handle 35, and the work-piece attached to the fork or holder V pivotally connect- 'ed'with the bushing 33 by means of arms to the pressure against the rolls '43 the han-- 31 is dipped into the tin bath. The apparatus is then raised and the friction disk 40 brought to bear against two rotating friction rolls 43 (Fig. 5), these latter being arranged at a suitable height above the bath. Owing dle is moved toward the bushing 33'while the spring 38' is being compressed, and the brake band 41 thus releases the brake disk 42, so that the shaft 32 is free to be driven by the rolls 43 at a rate of speed which is sufficient to cause the superfluous tin to be flung off from the work-piece on account of the centrifugal force. When the apparatus is withdrawn from the rolls 43 the spring 38. moves the handle 35 and the bushing 33 with theshaft'32 in opposite directions so 71 and the work-piece the bushing 73,

- 82 supporting at that the brake band 41 is brought into engagement with the brake disk 42 and brakes the shaft. y

In the embodiment according to Fig. 6 the handle 75 is rigidly connected with the bushing 73 in which the shaft 72 is journaled and in which in this case it is also movable longitudinally. The shaft 72 is provided with a braking device secured to the same, for instance a flange or brake disk 44. A spring 45 is arranged in the bushing 7 3 said spring" operating through a cup 46 and balls 47 to force the brake disk 44 to bear against a member connected with the bushing 73, for instance a nut 48 screw threadedly attached to the bushing. The shaft 72 is provided at the end opposite the fork or holder 71, with a ball 49 or some other equivalent member, and the rotary member 50 from which the motion is to shaft 72, is provided with a recess 51 which may, for instance, have the conical form shown in the drawing so as to be capable of receiving the ball 49.

When the shaft 72 together with the fork held by the same are raised from the bath by means of the handle 75 the ball 49 is introduced into the recess 51 in therotary member 50, whereby the shaft 72 is caused to ,rotate. At the same time the shaft is moved longitudinally in compressed and the brake disk 44 removed from the nut 48, thus allowing the shaft to rotate freely, engaged from the recess 51 by means'of the handle 75, the spring 45 again moves the brake disk 44 toward the nut 48, thusbraking the shaft.

As will be understood from the modified arrangement illustrated in Fig. 7 the shaft one end the gripping device 81 and rotating in the casing 83 supported by means of the handle 85, may be provided I with a friction disk 52 which, when the shaft is to be rotated, is brought into engagement with a friction disk 53-rotat1ng around a horizontal axis.

be transmitted to the the spring 45 being then When the ball 49 is later dislike which is subjected to a current of air,

water or other fluid for producing the motion. -Other modifications could of course also be made. The braking device for instance need not be automatic in its action, but may be influenced by hand through a tiller or the like operated from the handle.

I claim:

1. In an apparatus of the class described, a drivin element, a portable driven element, means for transmitting motion from said driving element to said driven element, and a gripping device carried by said driven element and adapted to rotate therewith, said gripping device being designed to hold the article to be coated, and said driven element bein movable so as to render said transn'iitt ng means operative or inoperative as desired, whereby said article after the same has been coated may be revolved to remove surplus coating therefrom by centrifugal force.

'2. In an apparatus of the class described, a driving shaft, a portable driven shaft, gripping jaws for holding the article to be coated carried at one end of said portable shaft, and means for moving said portable shaft to effect a driving connection with.

said driving shaft, whereby said jaws are revolved thereby removing surplus coating from said article by centrifugal force.

3. In an apparatus of the class described, a driving shaft, a'portable driven shaft, gripping jaws for holding the article to be coated carried at one end of said portable shaft, meansfor moving said portable shaft to effect a driving connection with said driv-' ing shaft, whereby. said jaws are revolved thereby removing surplus coatmg from said article by centrifugal force, and brake mecha fixed, driving element, and a portable carrier having a plurality of jaws, and means for transmitting a rotary motion thereto from said driving element.v

6. In an apparatus of the class described, a portable carrier having a plurality of jaws for gripping the article to be coated, a drivmg element, and means for transmitting ro tary motion from said element to said jaws to thereby remove surplus coating from said article by centrifugal force.

7. In an apparatus of the class described, a fixed driving element, a bushing, a rotatable shaft journaled therein having a plurality of jaws depending from one end- 7 thereof designed to grip "the article to be coated, means on the other end of said shaft adapted to transmit motion thereto from said driving element, and means for moving effecting and maintaining such engagement.

9.' In an apparatus of the class described, a driving element, a portable carrier comprising a rotatable shaft, a plurality of jaws depending from one end of said shaft and designed to grip the article to be coated, the

other end of said shaft being adapted for detachable engagement with said driving element, whereby motion therefrom may be transmitted to said shaft, means for efi'ecting and maintaining such engagement, and brake mechanism for arresting the motion of said shaft immediately upon the removal,

of the same out of engagement with said element.

10. In an apparatus for flinging off superfluous coating when tinning, painting or the like, the combination of a stationary frame, a driving member in said frame, a casing capable of being moved in all directions, a

shaft journaled in said casing, a gripping device secured to said shaft, means on said shaft adapted to engage said driving member, a brake disk on saidshaft, a handle pivoted to said casing, a brake band surrounding said brake disk and secured to said handle,-and a spring inserted between said casing and said handle and tending to move said handle relatively to said casing so as to gauge said brake band to engage said brake 11. In an apparatus of the class described,

a driving element, a portable carrier comprising an elongated bushing, a rotatable shaft journaled therein having a plurality of jaws depending from one end designed to grip the article to be coated, and means at the other end of said shaft adapted to transmit motion thereto from said driving element when said carrier is moved in such wise as to bring said means into engagement with said element.

SVEN AUGUST ESKILSON. 

